
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
    <script>
        class pohon{
              constructor(index,itme){
                       this.index=index
                       this.itme=itme
              }
              sji(){
                console.log("cf");
              }
        }
        let pohons=new pohon(1000,'99')
        pohons.index=1000
        pohons.itme='胡歌'
        console.log(pohons);
        // 
    </script>
</body>
</html>